New customization limited for other profiles?

Lets start by saying that the new customization site is amazing (https://www.halowaypoint.com/en-us#customize-h5) but i noticed that i had more armor unloked for an specific profile. Why is that? both profiles havent played the game yet so why i have more stuff on one profile than the other?

One profile probably has more unlocks from the MCC/Beta etc etc.